<template>
  <div class="login-container">
    <el-form ref="loginFormRef" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
      <div class="title-container">
        <h3 class="title">SmallBoot</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <el-icon>
            <User />
          </el-icon>
        </span>
        <el-input ref="username" v-model="loginForm.username" placeholder="请输入用户名" name="username" link tabindex="1" auto-complete="on" />
      </el-form-item>

      <el-tooltip :disabled="capslockTooltipDisabled" content="Caps lock is On" placement="right">
        <el-form-item prop="password">
          <span class="svg-container">
            <el-icon>
              <Lock />
            </el-icon>
          </span>
          <el-input
            ref="passwordRef"
            :key="passwordType"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="请输入密码"
            name="password"
            tabindex="2"
            auto-complete="on"
            @keyup="checkCapslock"
            @blur="capslockTooltipDisabled = true"
            @keyup.enter="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <el-icon>
              <View v-if="passwordType === 'password'" />
              <Lock v-else />
            </el-icon>
          </span>
        </el-form-item>
      </el-tooltip>

      <!-- 验证码 -->
      <!-- <el-form-item prop="code">
        <span class="svg-container">
          <el-icon>
            <ChatLineSquare />
          </el-icon>
        </span>
        <el-input v-model="loginForm.code" auto-complete="off" placeholder="请输入验证码" style="width: 65%"
          @keyup.enter="handleLogin" />

        <div class="captcha">
          <img :src="captchaBase64" @click="handleCaptchaGenerate" height="38px" />
        </div>
      </el-form-item> -->

      <el-button size="default" :loading="loading" type="primary" style="width: 100%; margin-bottom: 30px" @click.prevent="handleLogin"
        >登 录</el-button
      >

      <div class="tips">
        <span style="margin-right: 20px">用户名: admin</span>
        <span style="margin-right: 20px"> 密码: 123456</span>
      </div>
      <div class="tips">
        <span style="margin-right: 20px">用户名: test</span>
        <span style="margin-right: 20px"> 密码: 123456</span>
      </div>
    </el-form>

    <div v-if="showCopyright == true" class="copyright">
      <p>IF I WERE YOU</p>
    </div>
  </div>
</template>

<script setup lang="ts">
import { onMounted, reactive, ref, toRefs, watch, nextTick, getCurrentInstance } from 'vue'

// 组件依赖
import { ElForm, ElInput } from 'element-plus'
import router from '@/router'

// 状态管理依赖
import useStore from '@/store'

import { useRoute } from 'vue-router'
import { LoginFormData } from '@/types/api/system/login'

// 组件实例
const { proxy }: any = getCurrentInstance()
const { user } = useStore()
const route = useRoute()

const loginFormRef = ref(ElForm)
const passwordRef = ref(ElInput)

const state = reactive({
  redirect: '',
  loginForm: {
    username: '',
    password: '',
    code: '',
    uuid: '',
  } as LoginFormData,
  loginRules: {
    username: [{ required: true, trigger: 'blur' }],
    password: [{ required: true, trigger: 'blur', validator: validatePassword }],
  },
  loading: false,
  passwordType: 'password',
  captchaBase64: '',
  // 大写提示禁用
  capslockTooltipDisabled: true,
  otherQuery: {},
  clientHeight: document.documentElement.clientHeight,
  showCopyright: true,
})

function validatePassword(rule: any, value: any, callback: any) {
  if (value.length < 6) {
    callback(new Error('The password can not be less than 6 digits'))
  } else {
    callback()
  }
}

const { loginForm, loginRules, loading, passwordType, captchaBase64, capslockTooltipDisabled, showCopyright } = toRefs(state)

function checkCapslock(e: any) {
  const { key } = e
  state.capslockTooltipDisabled = key && key.length === 1 && key >= 'A' && key <= 'Z'
}

function showPwd() {
  if (state.passwordType === 'password') {
    state.passwordType = ''
  } else {
    state.passwordType = 'password'
  }
  nextTick(() => {
    passwordRef.value.focus()
  })
}

function handleLogin() {
  loginFormRef.value.validate((valid: boolean) => {
    if (valid) {
      state.loading = true
      user
        .login(state.loginForm)
        .then(() => {
          router.push({ path: state.redirect || '/', query: state.otherQuery })
          state.loading = false
        })
        .catch(() => {
          state.loading = false
          // handleCaptchaGenerate()
        })
    } else {
      return false
    }
  })
}

// 获取验证码
function handleCaptchaGenerate() {
  proxy.$api.sys_login.getCaptcha().then(({ data }: any) => {
    const { img, uuid } = data
    state.captchaBase64 = img
    state.loginForm.uuid = uuid
  })
}

watch(
  route,
  () => {
    const query = route.query
    if (query) {
      state.redirect = query.redirect as string
      state.otherQuery = getOtherQuery(query)
    }
  },
  {
    immediate: true,
  },
)

function getOtherQuery(query: any) {
  return Object.keys(query).reduce((acc: any, cur: any) => {
    if (cur !== 'redirect') {
      acc[cur] = query[cur]
    }
    return acc
  }, {})
}

onMounted(() => {
  // handleCaptchaGenerate()
  window.onresize = () => {
    if (state.clientHeight > document.documentElement.clientHeight) {
      state.showCopyright = false
    } else {
      state.showCopyright = true
    }
  }
})
</script>

<style lang="scss">
$bg: #021b32;
$light_gray: #fff;
$cursor: #fff;

/* reset element-ui css */
.login-container {
  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    .set-language {
      color: #fff;
      position: absolute;
      top: 3px;
      font-size: 18px;
      right: 0px;
      cursor: pointer;
    }
  }

  .el-input {
    display: inline-block;
    height: 36px;
    width: 85%;

    .el-input__wrapper {
      padding: 0;
      background: transparent;
      box-shadow: none;

      .el-input__inner {
        background: transparent;
        border: 0px;
        -webkit-appearance: none;
        border-radius: 0px;
        color: $light_gray;
        height: 36px;
        caret-color: $cursor;

        &:-webkit-autofill {
          box-shadow: 0 0 0px 1000px $bg inset !important;
          -webkit-text-fill-color: $cursor !important;
        }
      }
    }
  }

  .el-input__inner {
    &:hover {
      border-color: var(--el-input-hover-border, var(--el-border-color-hover));
      box-shadow: none;
    }

    box-shadow: none;
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }

  .copyright {
    width: 100%;
    position: absolute;
    bottom: 0;
    font-size: 12px;
    text-align: center;
    color: #cccccc;
  }
}
</style>

<style lang="scss" scoped>
$bg: #021b32;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 5px 10px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .captcha {
    position: absolute;
    right: 0;
    top: 0;

    img {
      height: 42px;
      cursor: pointer;
      vertical-align: middle;
    }
  }
}
</style>
